Search a number
-
+
20934333 = 3271917489
BaseRepresentation
bin100111111011…
…0111010111101
31110101120111200
41033312322331
520324344313
62024410113
7342640020
oct117667275
943346450
1020934333
11108a9302
127016939
13444c7a4
142acd1b7
151c87b73
hex13f6ebd

20934333 has 24 divisors (see below), whose sum is σ = 36379200. Its totient is φ = 11332224.

The previous prime is 20934323. The next prime is 20934337. The reversal of 20934333 is 33343902.

It is a de Polignac number, because none of the positive numbers 2k-20934333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20934297 and 20934306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7548 + ... + 9941.

It is an arithmetic number, because the mean of its divisors is an integer number (1515800).

Almost surely, 220934333 is an apocalyptic number.

It is an amenable number.

20934333 is a deficient number, since it is larger than the sum of its proper divisors (15444867).

20934333 is a wasteful number, since it uses less digits than its factorization.

20934333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17521 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 20934333 is about 4575.4052279552. The cubic root of 20934333 is about 275.6045455072.

The spelling of 20934333 in words is "twenty million, nine hundred thirty-four thousand, three hundred thirty-three".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 17489 52467 122423 157401 332291 367269 996873 1101807 2326037 2990619 6978111 20934333